Guillem Lima
Frontend Tech Lead at UserTesting
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolGuillem Lima is a Frontend Tech Lead based in Barcelona with 11 years of hands-on experience building web applications across the full JavaScript stack. He combines deep front-end expertise—React and styled-components in his current role at UserTesting—with long-running enthusiasm for Vue and contributions like the angular-mapboxgl-directive that reflect strong geospatial/Mapbox experience. His background spans real-time and location-aware products, Node.js backends, chatbots, and legacy enterprise integrations, giving him a pragmatic view of architecture and developer ergonomics. Comfortable moving between Product and Engineering, he mentors teams while still shipping code and libraries. Fluent in both modern frameworks and older stacks (AngularJS, ASP.NET, SharePoint), he’s adept at modernizing frontends without losing production reliability. Colleagues describe him as a polyglot JavaScript developer who blends curiosity about UI detail with a measurable impact on product UX and observability.
11 years of coding experience
7 years of employment as a software developer
Técnico Superior en Desarrollo de Aplicaciones Informáticas, Desarrollo de aplicaciones informáticas., Técnico Superior en Desarrollo de Aplicaciones Informáticas, Desarrollo de aplicaciones informáticas. at IES Carles Vallbona
Spanish, Catalan, English
Stackoverflow
31reputation
2kreached
1answer
0questions
Github Skills (57)
directive10
tiles10
mapbox-gl-js10
mapbox-gl10
angularjs10
maps9
draw9
javascript9
webgl9
openstreetmap9
drawing9
geojson9
css9
cdn9
vector-tiles9
Programming languages (2)
Github contributions (5)
Naimikan/deventor
Feb 2018 - Jun 2023
A pure Javascript event emitter
Contributions:25 PRs, 36 pushes, 2 branches in 5 years 4 months
event-emittereventsjavascript-event-emitterevent-listenerjavascript
Naimikan/react-trailer
Oct 2019 - Oct 2020
VideoPlayer component for React :movie_camera:
Contributions:6 releases, 24 PRs, 91 pushes in 1 year
reactvideoplayerhtml5-videocameramovie
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